>>5295Why do you think human beings evolved to have eosinophils and basophils in the first place?
I'm not trying to sound smart; plenty of them would have died from parasites. Plenty others would've became hardier over time.
Something like 5% of Europeans are immune to the AIDS virus because of the bubonic plague, for example. And it's well known that European diseases like smallpox and even simple shit like RSV or whatever wiped out a lot of Aboriginal people.